unity UDP广播 用于Windows和Android

using System.Net.Sockets;
using System.Net;
using UnityEngine;
using System.Text;

public class SocketUDP : MonoBehaviour
{
    private Socket socket;
    private IPEndPoint ipEnd;
    private byte[] data;
    public int udpPort = 9050;
    public static SocketUDP instance;
    public GameObject obj;
    public void Awake()
    {
        EventTriggerListener.Get(obj).onClick = onClick;
        if (instance == null)
        {
            instance = this;
            DontDestroyOnLoad(gameObject);
            BroadcastIP();
        }
        else
        {
            Destroy(gameObject);
            return;
        }

    }
    private void onClick(GameObject sender)
    {
        Send("123213");
    }
    public void BroadcastIP()
    {
        socket = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
        ipEnd = new IPEndPoint(IPAddress.Broadcast, udpPort);
        data = Encoding.ASCII.GetBytes("111");
        socket.SetSocketOption(SocketOptionLevel.Socket, SocketOptionName.Broadcast, 1);
        Send("hello");
    }

    public void Send(string msg)
    {
        Debug.Log("发送消息：" + msg);
        data = Encoding.ASCII.GetBytes(msg);
        socket.SendTo(data, ipEnd);
    }

    private void OnApplicationQuit()
    {
        print("关闭");
        socket.Shutdown(SocketShutdown.Both);
        socket.Close();
    }

}